The appearance of the mysterious man put Conan and the others on edge once again. He was shrouded in a black cloak, obscuring his face, but exuding a chilling aura.

"Who are you?" Conan shouted.

The mysterious man let out a cold laugh: "Hmph, you ignorant brats, how dare you ruin our plans."

Ran Mouri roared, "No matter who you are, your conspiracy will not succeed!"

The mysterious man waved his hand lightly, and a group of his men appeared behind him, surrounding them.

"Today is your doomsday," the mysterious man said in a chilling tone.

Undeterred, Kogoro Mouri charged forward: "Then let's give it a try!"

The two sides instantly engaged in fierce combat. Conan, while dealing with the enemy's attacks, observed the mysterious man's actions. He noticed a familiar madness and greed in the mysterious man's eyes.

Lin Yu used his high-tech equipment to temporarily repel a portion of the enemy, but new enemies kept pouring in.

Ai Haibara calmly analyzed the situation, searching for the enemy's weaknesses.

Just as the battle reached a stalemate, the mysterious man suddenly intervened. His movements were extremely swift, and his strength was astonishing, instantly knocking Kogoro Mori to the ground.

"Dad!" Ran Mouri cried out anxiously, wanting to save him, but she was entangled by the enemy.

Seeing the situation was dire, Conan charged towards the mysterious man. The mysterious man smiled contemptuously, dodged Conan's attack, and struck him back.

Conan fell heavily to the ground, but he quickly got up and charged at the mysterious man again.

At that moment, Ai Haibara shouted, "Conan, his left flank defense is weak!"

Upon hearing this, Conan changed his attack direction, focusing on the mysterious man's left side. The mysterious man was momentarily flustered and revealed an opening.

Ran Mouri seized the opportunity to break free from her enemies and launched a flying kick at the mysterious man. Unable to dodge in time, the mysterious man was struck in the shoulder.

Enraged, he roared. Just then, Conan noticed a distinctive badge peeking out from under the mysterious man's cloak.

"It was you!" Conan exclaimed.

It turns out that this mysterious man was actually the leader of a criminal organization that they had previously defeated. After escaping by chance, he joined the "Shadow Alliance" and plotted this series of conspiracies.

When the mysterious man realized that his identity had been exposed, he launched an even more frenzied attack.

"So what if you find out? None of you will leave here alive today!"

Conan and his friends did not back down. They worked together and engaged in a fierce battle with the mysterious man and his men.

After a fierce battle, they gradually gained the upper hand. The mysterious man's men were subdued one by one, leaving only him still putting up a last-ditch resistance.

"You can't escape!" Conan said.

Seeing that all was lost, the mysterious man suddenly activated a hidden device, and the entire room began to shake violently.

"Oh no, he's going to blow this place up!" Lin Yu shouted.

"Everyone, get out of here!" Conan shouted.

They ran quickly towards the exit. At the last moment, they managed to escape the stronghold.

With a loud bang, the stronghold was reduced to ruins.

"It's finally over," Ran Mouri said wearily.

However, Conan shook his head: "No, this is just the beginning. The 'Shadow Alliance' will not give up easily, and we must be more fully prepared."

They returned to the city and exposed the Shadow Alliance's plot. Police intensified their crackdown, and the city's security was further strengthened.

But Conan knows that the road ahead is long, and their mission continues...